MediShield™ Coating Portfolio

Standard coating platforms — and fully custom surface engineering

Medical Surface develops surface coatings for any medical device surface requirement. Our MediShield™ platforms below are our most commonly deployed coating families. If your device requires a surface property not listed here, our engineers develop custom coating formulations to your specification.

Standard platforms Custom formulations available Multi-layer stacks ISO 13485:2016 Certified PFAS-Free options available

Standard platforms — click to jump to any coating

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Hydrophilic Lubricious
CoF <0.1 · Wet environments
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Hydrophobic Lubricious (MSLIP)
PTFE-replacement · PFAS-free · Dry
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Superhydrophilic
<20° contact angle · Anti-fog
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Superhydrophobic
>150° contact angle · Fluid repellent
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Biocompatible
Anti-fouling · In vivo devices
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GLM / Diffusion-Limiting
CGM sensors · wearable sensors
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Tie-layer Coating
Wet/Dry · Polymer-to-metal bonding
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Encapsulation Coating
Wet/Dry · Barrier & insulation
Side-by-Side Comparison

Which MediShield™ coating is right for your device?

Coating Environment Key Performance Primary Applications
Hydrophilic Lubricious Wet CoF < 0.1 Catheters, guidewires, IOL cartridges, stent delivery
Hydrophobic Lubricious (MSLIP) Dry CoF 0.07–0.12 (PTFE-grade) Over-tubes, delivery sheaths, diagnostic insertion tubes
Superhydrophilic Wet Contact angle < 20° Optical surfaces, diagnostic imaging windows, contact lenses, microfluidics
Superhydrophobic Dry Contact angle > 150°, sliding angle < 10° Wearables, fluid-contact pump components, contamination-sensitive surfaces
Biocompatible In vivo Anti-fouling: protein, cell & bacterial resistance Implanted biosensors, CGM sensors, indwelling devices
GLM / Diffusion-Limiting In vivo 0–30 mM glucose linearity CGM / wearable sensors
Tie-layer Coating Wet/Dry Adhesion, compatibility, and durability Bonding polymer and metal layers, such as laser-cut hypotubes
Encapsulation Coating Wet/Dry Barrier protection, insulation, and durability Protective barrier sealing/insulating sensitive components
MediShield Hydrophilic Lubricious Coating
Lubricity · Wet

MediShield™ Hydrophilic Lubricious Coating

High-performance wet lubricity for catheters, guidewires, and interventional devices. When hydrated, the coating forms a polymer hydrogel layer that reduces the coefficient of friction to well below 0.1 — enabling devices to navigate complex vasculature with significantly less resistance and tissue trauma.

CoF < 0.1 (wet)ISO 10993PFAS-FreeInner Lumen Capable
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MediShield MSLIP Hydrophobic Coating
Lubricity · Dry

MediShield™ Hydrophobic Lubricious (MSLIP) Coating

PTFE-comparable dry lubricity with zero PFAS. Engineered for devices that must slide smoothly in ambient or non-aqueous environments — including tube-in-tube systems and catheter delivery sheaths. Matches PTFE in both static and dynamic coefficient of friction while eliminating all fluoropolymer chemistry.

PTFE-Comparable CoF100% PFAS-FreeISO 10993Dry Environment
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MediShield Superhydrophilic Coating
Wettability

MediShield™ Superhydrophilic Coating

Dramatically increases surface wettability for rapid and uniform water spreading. Enhances visualization, fluid management, and device performance across clinical applications. Achieves water contact angle below 20° — water spreads instantly rather than beading. Compatible with gamma, ETO and steam sterilization.

Contact angle < 20°ISO 10993Anti-foggamma, ETO and steam sterilization compatible
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MediShield Superhydrophobic Coating
Fluid Repellency

MediShield™ Superhydrophobic Coating

Creates an ultra-low surface-energy barrier that repels water and bodily fluids — keeping devices clean, dry, and resistant to contamination. Water contact angle above 150° with a sliding angle below 10°. Particularly valuable for wearable devices requiring moisture protection and fluid-contact components in pumps and cartridges.

Contact angle > 150°Sliding angle < 10°ISO 10993
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MediShield Biocompatible Coating
In Vivo Compatibility

MediShield™ Biocompatible Coating

Innovative hydrogel coating that limits the Foreign Body Response and extends the life of implanted devices and biosensors. Resists protein adsorption, cellular adhesion, and bacterial adhesion (tested per ISO 22196 — no detectable S. aureus or E. coli). Highly permeable to glucose — compatible with CGM sensor applications.

Anti-foulingISO 10993ISO 22196 Bacteria TestGlucose Permeable
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MediShield GLM Diffusion-Limiting Membrane
Biosensor Accuracy

MediShield™ Diffusion-Limiting Membrane (DLM) Coating

Precision-tunable polymer membranes that control analyte transport to the sensing layer. Selectively restricts glucose permeation while maintaining near-maximal oxygen transport — extending the linear detection range of glucose sensors from ~10 mM to the full clinical range of 0–30 mM.

CGM / Glucose Sensors0–30 mM LinearityISO 13485
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MediShield Tie-layer Coating on hypotube construction
Adhesion · Wet/Dry

MediShield™ Tie-layer Coating

Engineered interlayer that promotes adhesion, compatibility, and durability between dissimilar materials — most commonly used to bond polymer and metal layers, such as on laser-cut hypotubes.

Wet/DryAdhesionCompatibilityDurability
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MediShield Encapsulation Coating on mesh scaffold
Barrier · Wet/Dry

MediShield™ Encapsulation Coating

Conformal protective barrier that seals and insulates sensitive components, providing barrier protection, insulation, and durability for devices exposed to fluid or ambient environments.

Wet/DryBarrier ProtectionInsulationDurability
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Beyond the standard platforms

Custom coating development — any surface property, any device geometry

Our MediShield™ platforms are the most common starting points, but our proprietary coating process is not limited to them. Our proprietary coating process gives us the ability to engineer coatings to a specific surface property target that doesn't fit a standard category.

If you describe the functional requirement — CoF target, contact angle range, analyte selectivity, drug release kinetics, electrical conductivity — we design the coating chemistry to match it. Custom projects follow the same feasibility → optimization → qualification pathway as standard platform work, with full ISO 13485-certified documentation at every stage.

Discuss a custom coating requirement

Examples of custom coating work

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Drug-eluting coatings

Controlled release of therapeutic or antimicrobial agents from the device surface — tunable release kinetics

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Antimicrobial coatings

Surface-active coatings that inhibit bacterial colonization — for catheters, implants, and wound care devices

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Hemocompatible coatings

Phosphorylcholine-mimetic and zwitterionic coatings that resist thrombosis on blood-contacting surfaces

Conductive polymer coatings

Electrically active surfaces for neural interfaces, biosensor electrodes, and electrostimulation devices

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Custom diffusion-limiting membranes

Analyte-selective membranes for biosensors targeting non-glucose analytes — lactate, creatinine, urea, oxygen

Not sure which coating fits your device?

Describe your requirement directly

If your requirement doesn't fit a standard category, contact us directly and describe the surface property you need — we'll tell you whether it's feasible and what a development program would look like.

Describe a Custom Requirement

Enhance your device surface with our coatings.

Contact us to discuss your application and request a feasibility study.